package com.juc.nonBlockingQueue.nonBblockingQueue1;

import java.util.HashMap;

/**
 * 
 * ConcurrentHashMap
 * ConcurrentSkipListMap
 * ConcurrentSkipListSet
 * ConcurrentLinkedQueue
 * ConcurrentLinkedDeque
 * CopyOnWriteArrayList
 * CopyOnWriteArraySet
 * 非阻塞队列的特色就是队列里没有数据时，操作队列
 * 出现异常或返回null，不具有等待/阻塞的特色 
 */
public class MyService1 {

	public HashMap map = new HashMap();
}
